Ladies and gentlemen, please remain ________ until the plane has come to a complete stop.
| A．seated | B．seating |
| C．to seat | D．seat |
—Time is limited. I have to finish this tonight.
—But it’s midnight now and you should have a sleep ______ much work you have to do.
| A．however | B．no matter | C．although | D．whatever |
—Robert is indeed a wise man.
—Oh, yes. How often I have regretted ______ his advice!
| A．to take | B．taking | C．not to take | D．not taking |
Occasions are quite rare _______ I have the time to spend a day with my kids.
| A．who | B．that | C．which | D．when |
—Was it by cutting down staff _____ she saved the firm?
— No, it was by improving work efficiency.
| A．when | B．what | C．how | D．that |
Pressed from his parents, and ______ that he has washed too much time, the boy is determined to stop playing video games.
| A．realizing | B．realized | C．to realize | D．being realized |